if there is a way to slow down either the video or jam track while playing along with the songs.

Hi just joined myself around the same time as you did. I wondered that myself and I discovered that on the sides of the screen either left or right you will see red squares with numbers in them. By default 1.0x is highlighted. If you click on any of the ones below that it will slow down the video. Go above and it speeds it up. You can do it on all the segments of the lesson including the jam play. I go all the way to .5x when im trying to learn something new. Sounds kinda funny when they talk, but it helps immensly.

Good Luck,

Moe